* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

li {
    list-style: none;
}

a {
    text-decoration: none;
}

img {
    width: 100%;
    vertical-align: middle;
}

.box {
    width: 1110px;
    height: 247px;
    margin: 20px auto;
}

.box li {
    position: relative;
    float: left;
    width: 350px;
    height: 247px;
    margin-right: 30px;
    overflow: hidden;
}

.box li:last-child {
    margin-right: 0;
}
.pic .txt{
    position: absolute;
    bottom: 30px;
    left: 20px;
    color: #fff;
    font-size: 20px;
}
.pic .more{
    position: absolute;
    bottom: 20px;
    left: 20px;
    display: flex;
    height: 20px;
    line-height: 20px;
    color: #fff;
    opacity: -1;
}
.pic .more .icon-arrow-right{
    color: red;
    font-weight: bolder;
}
.pic:hover .mask {
     width: 350px;
      height: 247px;
      position: absolute;
      top: 0;
      left: 0;
      background-image: linear-gradient(transparent,rgba(0,0,0,.5));
}
.pic:hover .txt{
   bottom: 80px;
    opacity: 2;

}
.pic:hover .more{
    opacity: 2;
}









